Thank you to all the teams and participants that came to BAPC 2025, in-person or virtually! The contest has been uploaded to the gym here: https://mirror.codeforces.com/gym/105755. The model solutions and editorial will be posted shortly.
UPDATE: here are the solutions! Link. Let us know in the comments if there's anything else from the contest you'd like uploaded.
UPDATE: Made some minor fixes to the editorial and uploaded tourist's solutions from the contest to the Dropbox.
Study this.
Using tourist's solutions as official is crazy
Hey, they’re pretty good solutions!
Is problem F — Fill the Gym with Argon inspired by the laboratory scene from Project Hail Mary?
Either way, thanks for a great contest!
Nope, it's a joke from last year (organizers were debating whether or not to fill the balloons with helium, and someone suggested filling the gym with argon instead so that regular balloons would float)